Numerical Investigation of Centrifugal Compressor Performance in a Miniturbojet Engine
Publication: Journal of Aerospace Engineering
Volume 27, Issue 6
Abstract
Numerical investigations on the performance of the miniature centrifugal compressor in a SR-30 minijet engine are conducted in this study. A numerical framework is built on the basis of the grid independence and wall treatment sensitivity studies. The simulation results show that the compressor pressure ratio and isentropic efficiency is 2.65% and 70.1%, respectively, at 80,000 rpm. The experiments on the SR-30 engine were conducted at a testing rig for minijet engines. It is found that at 80,000 rpm, the experimental results of the compressor exit temperature is about a 9.2% difference from the simulation results and the difference in the pressure ratio is less than 4%. The compressor isentropic efficiency and pressure ratio are evaluated as a function of mass flow rate. Both the isentropic efficiency and pressure ratio show peak values at a specific mass flow rate. Continuously increasing or decreasing the mass flow rate leads to drops in both the pressure ratio and efficiency. Furthermore, the compressor surge and choke phenomena are discussed according to the mass flow rate range. Flow distribution in the impeller inlet area is mapped to illustrate the surge and choke phenomena.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
This work is supported by DSO national laboratories, Singapore.
References
Balje, O. E. (1962). “A study on design criteria and matching of turbomachines: Part B—Compressor and pump performance and matching of turbocomponents.” J. Eng. Gas Turb. Power, 84(1), 103–114.
Cordier, O. (1955). “Similarity considerations in turbomachines.”, VDI, Germany, 83–88.
Cousins, W. T. (1997). “The dynamics of stall and surge behavior in axial-centrifugal compressors.” Ph.D. thesis, Virginia Polytechnic Institute and State Univ., Blacksburg, VA.
Cumpsty, N. A. (1989). Compressor aerodynamics, Longman Scientific & Technical, Harlow, Essex, England, U.K., 79–126.
Davis, R. L., and Yao, J. X. (2006). “Prediction of compressor stage performance from choke through stall.” J. Propul. Power, 22(3), 550–557.
Deck, S., Duveau, P., d’Espiney, P., and Guillen, P. (2002). “Development and application of Spallart-Allmaras one-equation turbulence model to three-dimensional supersonic complex configurations.” Aerosp. Sci. Technol., 6(3), 171–183.
Gu, F. H., and Anderson, M. R. (2007a). “A Reynolds-averaged Navier-Stokes solver in a turbomachinery design system.” Proc., ASME Turbo Expo 2007, ASME, New York, 1259–1267.
Gu, F. H., and Anderson, M. R. (2007b). “A Reynolds-averaged Navier-Stokes solver in a turbomachinery design system.” Proc., ASME Turbo Expo 2007, ASME, New York, 1333–1341.
Hardin, J. R., Howell, I. L., Mirilovich, J. R., Hartranft, J. J., and Schreder, D. L. (1995). “A gas turbine condition monitoring system.” Nav. Eng. J., 107(6), 23–33.
Japikse, D. (1996). Centrifugal compressor design and performance, Concept ETI, Wilder, VT, 123–176.
Javaherchi, T., Aliseda, A., Antheaume, S., Seydel, J., and Pologye, B. (2009). “Study of the turbulent wake behind a tidal turbine through different numerical models.” Bulletin of the American Physical Society, Intl. 62nd Annual Meeting of the APS Div. Fluid Dynamics, Vol. 54, APS.
Kalitzin, G., Medic, G., and Iaccarino, G., and Durbin, P. (2005). “Near-wall behavior of RANS turbulence models and implications for wall functions.” J. Comput. Phys., 204(1), 265–291.
Léonard, O., Thomas, J. P., and Borguet, S. (2009). “Ten years of experience with a small jet engine as a support for education.” J. Eng. Gas Turb. Power, 131(1), 012303.
Ling, J., Wong, K. C., and Armfield, S. (2007). “Numerical investigation of a small gas turbine compressor.” Proc. 16th Australasian Fluid Mechanics Conf., Univ. of Queensland, Australia, 961–966.
Madden, D. S., and West, M. A. (2005). “Effects of inlet distortion on the stability of an advanced military swept fan stage with casing treatment.” Proc. ASME Turbo Expo 2005, ASME, New York, 269–279.
Packard, N. O., Japikse, D., and Maynes, R. D., and Gorrell, S. E. (2010). “Numerical characterization of the inlet flow for eleven radial turbomachines.” Proc. ASME Turbo Expo 2010, ASME, New York, 1779–1791.
Potsdam, M., and Pullian, T. (2008). “Turbulence modeling treatment for rotorcraft wakes.” AHS Specialists Conf. Aeromech., American Helicopter Society International, 1–14.
Pourmovahed, A., Jeruzal, C. M., and Brinker, K. D. (2003). “Development of a jet engine experiment for the energy systems laboratory.” Proc. ASME Int. Mech. Eng. Cong., ASME, New York, 229–247.
Rumsey, C. L., and Spalart, P. R. (2009). “Turbulence model behavior in low Reynolds number regions of aerodynamic flowfields.” AIAA J., 47(4), 982–993.
Rutledge, W. H., and Hoffmann, K. A. (1991). “Grid sensitivity in low Reynolds-number hypersonic continuum flows.” Proc. 3rd Int. Conf. Numer. Grid Gen. Comp. Fluid Dyn. Related Fields, North-Holland, Netherlands, 301–313.
Salim, S. M., and Cheah, S. C. (2009). “Wall y(+) strategy for dealing with wall-bounded turbulent flows.” Proc. Int. MultiConf. Eng. Comp. Scientists, Vol. 2, Newswood, Hong Kong, 2165–2170.
Sarnacki, W. P., Kimball, R., and Fleck, B. (2007). “Development of a comnined cycle gas turbine/steam plant for training marine and power engineers.” Proc. ASME Turbo Expo 2007, ASME, New York, 535–544.
Spalart, P. R., and Allmaras, S. R. (1994). “A one-equation turbulence model for aerodynamic flows.” La Recherche Aerospatiale, 1, 5–21.
Vassiliev, V., Kostege, V., and Porscher, A. (2005). “CFD application in design of GT structural components.” Proc. ASME Turbo Expo 2005, ASME, New York, 1191–1205.
Wang, Y., and Trouve, A. (2004). “Artificial acoustic stiffness reduction in fully compressible, direct numerical simulation of combustion.” Combust. Theory Modell., 8(3), 633–660.
Watanabe, A., Olcmen, S. M., Leland, R. P., Whitaker, K. W., Trevino, L. C., and Nott, C. (2006). “Soft computing applications on a SR-30 turbojet engine.” Fuzzy Sets Syst., 157(22), 3007–3024.
Witkowski, T., White, S., Duenas, C. O., Strykowski, P., and Simon, T. (2003). “Characterizing the performance of the SR-30 turbojet engine.” Proc. 2003 ASME Annual Conf. Expo., ASME, New York, 1133.
Yang, H., Kersken, H. P., and Nuernberger, D. (2005). “Toward excellence in turbomachinery computational fluid dynamics: A hybrid structured-unstructured Reynolds-Averaged Navier-Stokes solver.” J. Turbomach., 128(2), 390–402.
Information & Authors
Information
Published In
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Sep 25, 2012
Accepted: Feb 20, 2013
Published online: Feb 22, 2013
Discussion open until: Oct 22, 2014
Published in print: Nov 1, 2014
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.